What is a social media MCP server?

MCP (Model Context Protocol) is an open standard that lets AI assistants use external tools. A social media MCP server gives an assistant tools to list your accounts, draft posts, schedule them and manage them, so you can run your posting by chatting.

Which AI assistants work with PostGP?

Any assistant that supports remote MCP servers over HTTP. PostGP provides setup for Claude, Claude Code, ChatGPT, Gemini CLI, Codex and Cursor.

Which social networks can the assistant post to?

X, Instagram (Creator and Business accounts), LinkedIn and Threads, using the accounts you have connected in PostGP.

Do I need an API key?

No. The first time you connect, your assistant opens a browser window where you sign in to PostGP and approve access.

Can the assistant publish without my approval?

It can create drafts or schedule posts for a future time, at least 30 seconds ahead. If you want a review step, ask it to save drafts or to show you the text and time before scheduling, and check the calendar afterwards.

Can it get around platform limits or post too often?

No. Character limits, media rules and the spacing rule of one post every four hours per user apply to posts created by assistants as well.

Can I add images and video?

Yes. The assistant can upload an image, video or PDF from a public https link, up to 50 MB, and attach it to a post, subject to each platform's own media limits.

How do I revoke an assistant's access?

Remove the connector in your assistant, and delete your PostGP account or disconnect individual social accounts from the Accounts page. The data deletion guide explains each option.

PostGP

MCP server for X · Instagram · LinkedIn · Threads

The social media MCP server for Claude, ChatGPT, Codex and Gemini

Let your AI assistant draft, schedule and manage posts for X, Instagram, LinkedIn and Threads. Add one URL, approve access once, and run your calendar by chatting. No API key.

Server URL

https://postgp.com/mcp

Open the studio Connect your assistant

How it works

01
Add the server URL
Paste https://postgp.com/mcp into your assistant's connector or MCP settings, or run one command in your terminal.
02
Approve once
Your assistant opens a browser window. You sign in to PostGP and approve access. No API key to create or paste.
03
Ask for what you want
Describe the posts and the times. The assistant drafts, schedules and manages them in your PostGP calendar.

Ask once, get a draft per network

Describe the idea and when you want it out. The assistant writes a version for each platform, and every post appears in your PostGP calendar with a live preview, ready to check, edit or move.

You

Turn this into a LinkedIn post and an X thread, and schedule them for Tuesday morning.

The screenshot shows PostGP's built-in Chat. Assistants connected over MCP create the same posts in the same calendar.

PostGP Chat showing a LinkedIn post and an X thread drafted from one request, each with a preview, a suggested time and a Schedule button

What your assistant can do

Ten tools cover the whole life of a post, from the first draft to a retry.

Tool	What it does
list_accounts	See which X, Instagram, LinkedIn and Threads accounts are connected.
create_post	Save a draft or schedule a post for one account, with the fields each platform needs.
upload_media_from_url	Fetch an image, video or PDF from a public https link (up to 50 MB) to attach to a post.
list_posts	Review scheduled and published posts in a date range.
list_drafts	See unscheduled drafts, newest first.
get_post	Open one post with its full content and status.
reschedule_post	Move a draft, scheduled or failed post to a new future time.
unschedule_post	Stop a scheduled post and send it back to drafts.
retry_post	Queue a failed post to publish again right away.
delete_post	Delete a post that is not publishing at that moment.

Connect Claude, ChatGPT, Codex, Gemini or Cursor

Pick your assistant and copy the setup. The first time, a browser window opens so you can sign in and approve access. Any other assistant that supports remote MCP servers over HTTP works with the same URL.

Claude

Settings → Connectors → Add custom connector, then paste the URL.

https://postgp.com/mcp

Claude Code

Run this in your terminal.

claude mcp add --transport http postgp https://postgp.com/mcp

ChatGPT

Settings → Plugins → Add → Create custom MCP server.

https://postgp.com/mcp

Gemini CLI

Add to ~/.gemini/settings.json.

{
  "mcpServers": {
    "postgp": { "httpUrl": "https://postgp.com/mcp" }
  }
}

Codex

Add to ~/.codex/config.toml.

[mcp_servers.postgp]
url = "https://postgp.com/mcp"

Cursor

Add to ~/.cursor/mcp.json.

{
  "mcpServers": {
    "postgp": { "url": "https://postgp.com/mcp" }
  }
}

The same instructions are always in the app, on the MCP page of your PostGP account. For a step-by-step walkthrough, read the AI assistant setup guide.

Prompts to try

Include the platform, the time and a time zone, and say whether you want a draft or a scheduled post.

Schedule one post

Schedule this LinkedIn post for next Tuesday at 9:00 am Europe/London on my main account, and show me the text and time first:

"We shipped weekly release notes this quarter. Three things changed how we plan..."

One idea, every network

Turn this announcement into an X thread of up to 4 posts, a LinkedIn post and a Threads post. Save all three as drafts in PostGP.

Plan a week

List my PostGP accounts, then draft five posts for next week, one per weekday, rotating X, LinkedIn and Threads. Schedule them around 9:00 am my time, with at least four hours between any two.

Fix what failed

Find my failed PostGP posts, tell me why each one failed, and retry only the ones that failed for a temporary reason.

Why use PostGP as your social media MCP server

Sign in as you, no API key

Access is approved in your browser through OAuth. The assistant acts as your PostGP user and sees only your own data.

Four networks, one server

X, Instagram, LinkedIn and Threads, including Instagram without a Facebook Page and Threads media posts.

The rules still apply

Platform limits, media checks and the one-post-every-four-hours spacing are enforced for assistants exactly as in the app.

Review in a real calendar

Everything the assistant creates shows up in PostGP's calendar with true-to-life previews, so you can check, edit or move it.

Treat the assistant like a fast colleague, not an autopilot. Ask it to show the text and time before scheduling, keep drafts for anything sensitive, and check the PostGP calendar, which is the source of truth for what will publish.

Frequently asked questions

What is a social media MCP server?: MCP (Model Context Protocol) is an open standard that lets AI assistants use external tools. A social media MCP server gives an assistant tools to list your accounts, draft posts, schedule them and manage them, so you can run your posting by chatting.
Which AI assistants work with PostGP?: Any assistant that supports remote MCP servers over HTTP. PostGP provides setup for Claude, Claude Code, ChatGPT, Gemini CLI, Codex and Cursor.
Which social networks can the assistant post to?: X, Instagram (Creator and Business accounts), LinkedIn and Threads, using the accounts you have connected in PostGP.
Do I need an API key?: No. The first time you connect, your assistant opens a browser window where you sign in to PostGP and approve access.
Can the assistant publish without my approval?: It can create drafts or schedule posts for a future time, at least 30 seconds ahead. If you want a review step, ask it to save drafts or to show you the text and time before scheduling, and check the calendar afterwards.
Can it get around platform limits or post too often?: No. Character limits, media rules and the spacing rule of one post every four hours per user apply to posts created by assistants as well.
Can I add images and video?: Yes. The assistant can upload an image, video or PDF from a public https link, up to 50 MB, and attach it to a post, subject to each platform's own media limits.
How do I revoke an assistant's access?: Remove the connector in your assistant, and delete your PostGP account or disconnect individual social accounts from the Accounts page. The data deletion guide explains each option.

Keep reading

Run your social calendar from your AI assistant

Create your PostGP account, connect your networks and add the MCP URL.

Open the studio